adding branch misses

lemire · Jan 31, 2024 · d62e8a8 · d62e8a8
1 parent 2f86508
commit d62e8a8
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Showing 3 changed files with 15 additions and 11 deletions.
diff --git a/benchmarks/apple_arm_events.h b/benchmarks/apple_arm_events.h
@@ -1101,7 +1101,13 @@ inline performance_counters get_counters() {
     }
     return 1;
   }
-
+ /*printf("counters value:\n");
+    for (usize i = 0; i < ev_count; i++) {
+        const event_alias *alias = profile_events + i;
+        usize idx = counter_map[i];
+        u64 val = counters_1[idx] - counters_0[idx];
+        printf("%14s: %llu\n", alias->alias, val);
+    }*/
   return performance_counters{
       counters_0[counter_map[0]], counters_0[counter_map[2]],
       counters_0[counter_map[3]],

diff --git a/benchmarks/benchmark.cpp b/benchmarks/benchmark.cpp
@@ -233,6 +233,8 @@ void pretty_print(double volume, size_t number_of_floats, std::string name, std:
   double instructions_avg{0};
   double branches_min{0};
   double branches_avg{0};
+  double branch_misses_min{0};
+  double branch_misses_avg{0};
   for(event_count e : events) {
     double ns = e.elapsed_ns();
     average_ns += ns;
@@ -249,6 +251,10 @@ void pretty_print(double volume, size_t number_of_floats, std::string name, std:
     double branches = e.branches();
     branches_avg += branches;
     branches_min = branches_min < branches ? branches_min : branches;
+
+    double branch_misses = e.missed_branches();
+    branch_misses_avg += branch_misses;
+    branch_misses_min = branch_misses_min < branch_misses ? branch_misses_min : branch_misses;
   }
   cycles_avg /= events.size();
   instructions_avg /= events.size();
@@ -273,6 +279,8 @@ void pretty_print(double volume, size_t number_of_floats, std::string name, std:
            instructions_min /cycles_min);
     printf(" %8.2f b/f ",
            branches_avg /number_of_floats);
+    printf(" %8.2f bm/f ",
+           branch_misses_avg /number_of_floats);
     printf(" %8.2f GHz ", 
            cycles_min / min_ns);
   }

diff --git a/benchmarks/event_counter.h b/benchmarks/event_counter.h
@@ -30,28 +30,18 @@ struct event_count {
 
   // The types of counters (so we can read the getter more easily)
   enum event_counter_types {
-<<<<<<< HEAD
-    CPU_CYCLES,
-    INSTRUCTIONS,
-    BRANCH_MISSES
-=======
     CPU_CYCLES = 0,
     INSTRUCTIONS = 1,
     BRANCHES = 2,
     MISSED_BRANCHES = 3
->>>>>>> 2d0d081779f796041fbaf8791e99509f7f226dac
   };
 
   double elapsed_sec() const { return std::chrono::duration<double>(elapsed).count(); }
   double elapsed_ns() const { return std::chrono::duration<double, std::nano>(elapsed).count(); }
   double cycles() const { return static_cast<double>(event_counts[CPU_CYCLES]); }
   double instructions() const { return static_cast<double>(event_counts[INSTRUCTIONS]); }
-<<<<<<< HEAD
-  double branch_misses() const { return static_cast<double>(event_counts[BRANCH_MISSES]); }
-=======
   double branches() const { return static_cast<double>(event_counts[BRANCHES]); }
   double missed_branches() const { return static_cast<double>(event_counts[MISSED_BRANCHES]); }
->>>>>>> 2d0d081779f796041fbaf8791e99509f7f226dac
 
   event_count& operator=(const event_count& other) {
     this->elapsed = other.elapsed;